# JWT: trust extends beyond signatures

https://thiago.limaesilvatecnologia.com.br/en/artigos/jwt-trust/

Published: 2026-09-12

Each consumer must know which tokens it may accept.

Content produced with AI assistance for Thiago Silva’s website. Independent editorial analysis; it does not represent clients or employers.

Reading-path month: April 2026

Collection published on September 12, 2026. Months organize the reading path; they are not earlier publication dates.

A short architecture article. The technical reference supports the topic; hypothetical scenarios and assessment proposals are editorial analysis, not accounts of personal implementations.

## The architecture decision

A signed token is not automatically appropriate for every API. Review the expected issuer, intended use and context in which the service accepts its claims.

## Practical application

Editorial proposal: document an acceptance contract per consumer. In a hypothetical two-API ecosystem, distinguish audiences and permissions. Avoid turning sample validation into universal configuration.

## How to verify

Test tokens intended for another service, expired tokens and inappropriate issuing contexts. Record rejection before business operations. Include key rollover in operational exercises: outages and configuration changes also need predictable behavior.

## Sources

- [OWASP — JSON Web Token Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/JSON_Web_Token_Cheat_Sheet.html). Accessed: 2026-09-12.

[Profile: Thiago Silva | Cyber Architect](https://thiago.limaesilvatecnologia.com.br/en/perfil/)